Answer:
On cloud nine
Like a dog with two tails
Full of the joys of spring
Happy as Larry
On top of the world
Over the moon
In seventh heaven
Happy-Go-Lucky
Happy Camper
Bursting with Joy
Grinning From Ear to Ear
<em><u>hope this helps!</u></em>
It’s b the pine tree has unprotected seeds, the apple tree has seeds in fruits
Although I am not sure what the answer choices are, I'd have to guess and say any choice that says the cells use sunlight to make their food.
The leading cause is garbage and waste from people.